# CTAN update: diffcoeff

Date: March 11, 2019 7:10:34 PM CET
Andrew Parsloe submitted an update to the diffcoeff package. Version number: 3.1 2019-03-10 License type: lppl1.3c Summary description: Write differential coefficients easily and consistently Announcement text:
Version 3.1 diffcoeff corrects a bug in the differential command \dl. It can now be used before forms like \vec{x}. This caused errors in version 3.
Thanks for the upload. For the CTAN Team Manfred Lotz We are supported by the TeX user groups. Please join a users group; see http://www.tug.org/usergroups.html .

## diffcoeff – Write differential coefficients easily and consistently

diffcoeff.sty allows the easy and consistent writing of ordinary, partial and other derivatives of arbitrary (algebraic or numeric) order. For mixed partial derivatives, the total order of differentiation is calculated by the package. Optional arguments allow specification of points of evaluation (ordinary derivatives), or variables held constant (partial derivatives), and the placement of the differentiand (numerator or appended).

The package is built on xtemplate, allowing systematic fine-tuning of the display and generation and use of variant forms (like derivatives built from D, \Delta or \delta). A command for differentials ensures the dx used in e.g. integrals is consistent with the form used in derivatives.

The package requires the 3 bundles l3kernel and l3packages.

 Package diffcoeff Version 3.2 2019-12-28 Copyright 2016–2019 Andrew Parsloe Maintainer Andrew Parsloe

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